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    CVE-2023-5367

    A out-of-bounds write flaw was found in the xorg-x11-server. This issue occurs due to an incorrect calculation of a buffer offset when copying data stored in the heap in the XIChangeDeviceProperty function in Xi/xiproperty.c and in RRChangeOutputProperty function in randr/rrproperty.c, allowing for possible escalation of privileges or denial of service.

    Published:Oct 25, 2023
    Last Modified:Jun 23, 2026
    EPS:Oct 25, 2023
    EPSS Score:0.0062
    CVSS Score:7.8

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Linux Desktop
    Vendor
    Redhat
    Product
    Enterprise Linux For Ibm Z Systems
    Vendor
    Redhat
    Product
    Enterprise Linux For Power Big Endian
    Vendor
    Redhat
    Product
    Enterprise Linux For Power Little Endian
    Vendor
    Redhat
    Product
    Enterprise Linux For Scientific Computing
    Vendor
    Redhat
    Product
    Enterprise Linux Server
    Vendor
    Redhat
    Product
    Enterprise Linux Workstation
    Vendor
    Redhat
    Product
    Rhel Aus
    Vendor
    Redhat
    Product
    Rhel E4s
    Vendor
    Redhat
    Product
    Rhel Els
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Redhat
    Product
    Rhel Tus
    Vendor
    X.org
    Product
    X Server
    Vendor
    X.org
    Product
    Xwayland

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-787 Out-of-bounds Write

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-49975 (CVSS 7.5) — Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of …
    CVE-2026-9256 (CVSS 9.2) — NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_rewrite_module module. This vulnerabilit…
    CVE-2026-31431 (CVSS 7.8) — In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating …
    CVE-2026-34757 (CVSS 5.1) — LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network …
    CVE-2026-4775 (CVSS 7.8) — A flaw was found in the libtiff library. A remote attacker could exploit a signed integer overflow vulnerabili…
    CVE-2025-63261 (CVSS 7.8) — AWStats 8.0 is vulnerable to Command Injection via the open function…
    CVE-2026-3497 (CVSS 6.9) — Vulnerability in the OpenSSH GSSAPI delta included in various Linux distributions. This vulnerability affects …
    CVE-2026-1940 (CVSS 5.1) — An incomplete fix for CVE-2024-47778 allows an out-of-bounds read in gst_wavparse_adtl_chunk() function. The p…

    References

    https://access.redhat.com/errata/RHSA-2023:6802
    https://access.redhat.com/errata/RHSA-2023:6808
    https://access.redhat.com/errata/RHSA-2023:7373
    https://access.redhat.com/errata/RHSA-2023:7388
    https://access.redhat.com/errata/RHSA-2023:7405
    https://access.redhat.com/errata/RHSA-2023:7428
    https://access.redhat.com/errata/RHSA-2023:7436
    https://access.redhat.com/errata/RHSA-2023:7526
    https://access.redhat.com/errata/RHSA-2023:7533
    https://access.redhat.com/errata/RHSA-2024:0010
    https://access.redhat.com/errata/RHSA-2024:0128
    https://access.redhat.com/errata/RHSA-2024:2169
    https://access.redhat.com/errata/RHSA-2024:2170
    https://access.redhat.com/errata/RHSA-2024:2995
    https://access.redhat.com/errata/RHSA-2024:2996
    https://access.redhat.com/errata/RHSA-2025:12751
    https://access.redhat.com/security/cve/CVE-2023-5367
    https://bugzilla.redhat.com/show_bug.cgi?id=2243091
    https://lists.x.org/archives/xorg-announce/2023-October/003430.html
    https://access.redhat.com/errata/RHSA-2023:6802
    https://access.redhat.com/errata/RHSA-2023:6808
    https://access.redhat.com/errata/RHSA-2023:7373
    https://access.redhat.com/errata/RHSA-2023:7388
    https://access.redhat.com/errata/RHSA-2023:7405
    https://access.redhat.com/errata/RHSA-2023:7428
    https://access.redhat.com/errata/RHSA-2023:7436
    https://access.redhat.com/errata/RHSA-2023:7526
    https://access.redhat.com/errata/RHSA-2023:7533
    https://access.redhat.com/errata/RHSA-2024:0010
    https://access.redhat.com/errata/RHSA-2024:0128
    https://access.redhat.com/errata/RHSA-2024:2169
    https://access.redhat.com/errata/RHSA-2024:2170
    https://access.redhat.com/errata/RHSA-2024:2995
    https://access.redhat.com/errata/RHSA-2024:2996
    https://access.redhat.com/security/cve/CVE-2023-5367
    https://bugzilla.redhat.com/show_bug.cgi?id=2243091
    https://lists.debian.org/debian-lts-announce/2023/10/msg00036.html
    https://lists.fedoraproject.org/archives/list/[email protected]/message/2WS5E7H4A5J3U5YBCTMRPQVGWK5LVH7D/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/3RK66CXMXO3PCPDU3GDY5FK4UYHUXQJT/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/4YBK3I6SETHETBHDETFWM3VSZUQICIDV/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/AKKIE626TZOOPD533EYN47J4RFNHZVOP/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/HO2Q2NP6R62ZRQQG3XQ4AXUT7J2EKKKY/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/L2RMNR4235YXZZQ2X7Q4MTOZDMZ7BBQU/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/SEDJN4VFN57K5POOC7BNVD6L6WUUCSG6/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/SN6KV4XGQJRVAOSM5C3CWMVAXO53COIP/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/TJXNI4BXURC2BKPNAHFJK3C5ZETB7PER/
    https://lists.x.org/archives/xorg-announce/2023-October/003430.html
    https://security.gentoo.org/glsa/202401-30
    https://security.netapp.com/advisory/ntap-20231130-0004/
    https://www.debian.org/security/2023/dsa-5534

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High